Vehicle charging control method and vehicle

Abstract

The invention relates to the technical field of vehicle charging, and provides a vehicle charging control method and a vehicle, an initial request voltage is determined, a pre-charging request is sent to a charging pile, timing is started, and the pre-charging request comprises the initial request voltage; and receiving an output voltage of the charging pile, determining that a pre-charging completion condition is satisfied according to the output voltage of the charging pile and the pre-charging duration, and charging the vehicle by using the charging pile. Whether the pre-charging completion condition is met or not is judged according to the output voltage and the pre-charging duration, so that the problem that the contactor is mistakenly closed due to the fact that the output voltage of the charging pile fluctuates greatly in the initial stage of charging and the judgment on whether pre-charging is completed or not is inaccurate only according to related regulations is avoided, and the reliability of the charging process is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vehicle charging, in particular to a vehicle charging control method and a vehicle. BACKGROUND

[0002] With the rapid development of the vehicle technology field, vehicles have become an important means of transportation in people's daily life. When charging a vehicle, a pre-charging stage is required to ensure the safety of the vehicle battery.

[0003] According to the current relevant regulations, the pre-charging of a vehicle is determined to be completed when the internal and external pressure difference of the pre-charging contactor is less than 20V. However, due to the volatility of the charging pile in the initial charging stage, if the contactor is immediately closed according to the internal and external pressure difference less than 20V, it may lead to charging failure, or even damage the contactor. SUMMARY

[0004] Therefore, the purpose of the present disclosure is to provide a vehicle charging control method and a vehicle to solve the problem of inaccurate judgment when using the pressure difference threshold set in the current standard to determine whether the pre-charging is completed.

[0005] To achieve the above purpose, the first aspect of the present disclosure provides a vehicle charging control method, which comprises: determining an initial request voltage, sending a pre-charging request to a charging pile, and starting timing, wherein the pre-charging request contains the initial request voltage; receiving the output voltage of the charging pile, determining that the pre-charging completion condition is met according to the output voltage of the charging pile and the pre-charging time length, and charging the vehicle using the charging pile.

[0006] Based on the same inventive concept, the second aspect of the present disclosure provides a vehicle charging control device, which comprises: a timing module configured to determine an initial request voltage, send a pre-charging request to a charging pile, and start timing, wherein the pre-charging request contains the initial request voltage; a charging control module configured to receive the output voltage of the charging pile, determine that the pre-charging completion condition is met according to the output voltage of the charging pile and the pre-charging time length, and charge the vehicle using the charging pile.

[0007] Based on the same inventive concept, the third aspect of the present disclosure provides an electronic device, which comprises a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the processor implements the vehicle charging control method as described above when executing the computer program.

[0008] Based on the same inventive concept, a fourth aspect of the present disclosure provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the vehicle charging control method as described above.

[0009] Based on the same inventive concept, a fifth aspect of the present disclosure provides a vehicle comprising the vehicle charging control apparatus of the second aspect, the electronic device of the third aspect, or the storage medium of the fourth aspect.

[0010] As can be seen from the above, the present disclosure provides a vehicle charging control method and a vehicle, which determines an initial request voltage, sends a pre-charging request to a charging pile, and starts timing, wherein the pre-charging request contains the initial request voltage. After sending the pre-charging request to the charging pile, the pre-charging duration is recorded for subsequent determination of the corresponding pre-charging completion condition according to the pre-charging duration. The output voltage of the charging pile is received, and the pre-charging completion condition is determined according to the output voltage of the charging pile and the pre-charging duration. At this time, it indicates that the pre-charging is completed, and the charging pile is used to charge the vehicle. By determining whether the pre-charging completion condition is met according to the output voltage and the pre-charging duration, the problem of incorrect determination of whether the pre-charging is completed only according to relevant regulations due to large fluctuations in the output voltage of the charging pile at the initial charging stage, and the resulting contactor mis-closing are avoided, and the reliability of the charging process is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the present disclosure or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or related art descriptions. Obviously, the drawings in the following description are only embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0012] Figure 1 Flowchart of the vehicle charging control method of an embodiment of the present disclosure; Figure 2 Flowchart of the vehicle charging control method of another embodiment of the present disclosure; Figure 3 Structure block diagram of the vehicle charging control apparatus of an embodiment of the present disclosure; Figure 4 Structure schematic diagram of the electronic device of an embodiment of the present disclosure. DETAILED DESCRIPTION

[0013] In order to make the purposes, technical solutions and advantages of the present disclosure more clear, the following will further describe the present disclosure in combination with specific embodiments and with reference to the drawings.

[0014] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the embodiments of the present disclosure shall have the common meaning understood by one of ordinary skill in the art to which the present disclosure belongs. The terms "first", "second", and similar terms used in the embodiments of the present disclosure do not denote any order, quantity, or importance, but are used to distinguish different components. The terms "include", "contain", and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are used only to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships can also change accordingly.

[0015] In the field of electric vehicle charging, the pre-charging process is an important link to ensure the safe charging of the battery in the European and American DC charging technology. That is, when the vehicle is charging, it needs to go through a pre-charging stage to protect the high-voltage system, prevent arc impact, prolong the service life of the device, and ensure the safe and smooth establishment of the working voltage of the entire high-voltage loop.

[0016] Currently, when pre-charging is performed, the charging pile output voltage is detected by the vehicle to determine the internal and external pressure difference of the pre-charging contactor, and then it is determined whether the pre-charging is completed. According to relevant regulations, the vehicle needs to determine that the internal and external pressure difference of the pre-charging contactor is less than 20V when pre-charging is completed.

[0017] However, there is a deviation in the output of some charging piles at present, which has a large or small difference with the actual voltage requested by the vehicle. At this time, it leads to pre-charging failure, and thus the charging pile cannot be used normally to charge the vehicle. At the same time, the output voltage of the charging pile fluctuates at the initial stage of charging. If the contactor is immediately closed according to the pressure difference less than 20V, it may cause charging failure, or even damage the contactor.

[0018] In addition, the internal and external pressure difference when the pre-charging contactor is closed has a direct impact on the service life of the pre-charging contactor. When the main contactor is closed, there is a large pressure difference between the two ends, which will generate a strong capacitive impulse current at the moment of closing, causing local overheating of the contact point or even welding, forming arc ablation or contact point sticking phenomenon, significantly aggravating the mechanical and electrical wear of the contactor. That is, the greater the internal and external pressure difference, the greater the impulse current generated at the time of closing, and the more serious the wear of the pre-charging contactor. At present, most charging piles have high-precision output, and the threshold of 20V is too large, and there is room for optimization.

[0019] Based on the above description, for the charging related provisions in the existing pre-charging strategy, the differential pressure threshold is set to 20V, which is not conducive to the protection of the contactor and the stability of the charging under the influence of the high-precision output of the charging pile and the voltage fluctuation. The embodiment proposes a vehicle charging control method, as shown in Figure 1 The method comprises: Step 101, determining an initial request voltage, sending a pre-charging request to the charging pile, and starting timing, wherein the pre-charging request contains the initial request voltage.

[0020] In specific implementation, after the vehicle is connected with the charging pile, a connection request is sent to the charging pile, indicating that the vehicle needs to be charged by the charging pile. After receiving the connection request, the charging pile performs insulation detection to confirm that the high-voltage loop is well insulated from the ground, preventing personal injury, equipment burning or power grid accidents caused by leakage and short circuit.

[0021] In response to receiving the insulation detection pass information, i.e. the insulation detection passes at this time, the vehicle determines an initial request voltage and sends a pre-charging request containing the initial request voltage to the charging pile, i.e. the pre-charging request contains the initial request voltage.

[0022] In the embodiment, the initial request voltage is the first request voltage sent by the vehicle to the charging pile, and at this time, the vehicle battery pack voltage before charging can be used as the initial request voltage. That is, the initial request voltage is the vehicle battery pack voltage at the time before sending the pre-charging request.

[0023] In the embodiment, timing is started at the same time as sending the pre-charging request to the charging pile. Therefore, the timing duration obtained is the charging duration of the vehicle in the pre-charging stage, i.e. the timing duration is the pre-charging duration.

[0024] Step 102, receiving the charging pile output voltage, determining that the pre-charging completion condition is met according to the charging pile output voltage and the pre-charging duration, and using the charging pile to charge the vehicle.

[0025] In specific implementation, after the vehicle sends a pre-charging request containing an initial request voltage to the charging pile, the charging pile receives the pre-charging request, determines an output voltage corresponding to the initial request voltage according to the initial request voltage, and feeds back the output voltage to the vehicle.

[0026] After receiving the charging pile output voltage sent by the charging pile, it is judged whether the vehicle meets the pre-charging completion condition according to the charging pile output voltage and the recorded pre-charging duration. The pre-charging completion condition is not a fixed condition, and is related to the pre-charging duration and the charging pile output voltage.

[0027] When it is determined that the pre-charging completion condition is met, at this time, it means that the vehicle pre-charging stage is completed, that is, at this time, the voltage difference between the two ends of the pre-charging contactor is very small, there is no arc impact, the main positive contactor is closed, and the high-voltage main circuit is formally established. That is, the closed loop of the vehicle battery pack and the charging pile is formed, and the vehicle is ready to start formal charging, that is, the vehicle is charged by using the charging pile.

[0028] Through the above scheme, by determining the initial request voltage, sending a pre-charging request to the charging pile, and starting timing, wherein the pre-charging request contains the initial request voltage. After sending the pre-charging request to the charging pile, record the pre-charging duration, so that the corresponding pre-charging completion condition can be determined according to the pre-charging duration. Receive the output voltage of the charging pile, and determine whether the pre-charging completion condition is met according to the output voltage of the charging pile and the pre-charging duration. At this time, it means that the pre-charging is completed, and the vehicle is charged by using the charging pile. By determining whether the pre-charging completion condition is met according to the output voltage and the pre-charging duration, the problem of incorrect contactor closing caused by the inaccurate determination of whether the pre-charging is completed only according to the relevant provisions due to the large fluctuation of the output voltage of the charging pile at the initial charging stage is avoided, and the reliability of the charging process is improved.

[0029] In some embodiments, when it is determined whether the vehicle meets the pre-charging completion condition, the pressure difference between the two ends of the pre-charging contactor needs to be considered, that is, the internal and external pressure difference between the two ends of the pre-charging contactor. That is, in step 102, according to the output voltage of the charging pile and the pre-charging duration, it is determined that the pre-charging completion condition is met, and the vehicle is charged by using the charging pile, which specifically includes: Step 1021, obtaining the vehicle battery pack voltage, and determining the target pressure difference according to the vehicle battery pack voltage and the output voltage of the charging pile; Step 1022, determining that the pre-charging completion condition is met according to the target pressure difference and the pre-charging duration, and charging the vehicle by using the charging pile.

[0030] In specific implementation, the vehicle battery pack voltage is obtained, wherein, as the pre-charging stage proceeds, the vehicle battery pack voltage changes all the time, therefore, the vehicle battery pack voltage is the voltage obtained in real time. The target pressure difference is determined according to the vehicle battery pack voltage and the output voltage of the charging pile, that is, the vehicle battery pack voltage and the output voltage of the charging pile are subtracted to obtain the target pressure difference.

[0031] In this embodiment, the vehicle battery pack voltage may be greater than the output voltage of the charging pile, may be less than the output voltage of the charging pile, or may be equal to the output voltage of the charging pile. Therefore, the vehicle battery pack voltage and the output voltage of the charging pile are subtracted to obtain the target pressure difference, which may be positive, negative, or zero.

[0032] The target pressure difference and the pre-charging duration are used to determine whether the vehicle meets a preset pre-charging completion condition. When it is determined that the preset pre-charging completion condition is met, the vehicle is charged by using the charging pile.

[0033] Specifically, in step 1022, the target pressure difference and the pre-charging duration are used to determine that the pre-charging completion condition is met, and the vehicle is charged by using the charging pile. Specifically, the step includes the following steps. In step 10221, in response to the target pressure difference meeting a first pressure difference range and the pre-charging duration being less than or equal to a first preset duration threshold and lasting for a first preset duration, it is determined that the pre-charging completion condition is met, and the vehicle is charged by using the charging pile.

[0034] In specific implementation, the determined target pressure difference is compared with the preset first pressure difference range, that is, the size relationship between the target pressure difference and the first pressure difference range is determined. Meanwhile, the pre-charging duration is compared with the first preset duration threshold, and the size relationship between the pre-charging duration and the first preset duration threshold is determined.

[0035] If the target pressure difference meets the first pressure difference range and the pre-charging duration is less than or equal to the first preset duration threshold and lasts for the first preset duration, that is, the target pressure difference is a certain value in the first pressure difference range, and the pre-charging duration is less than the first preset duration threshold and lasts for the first preset duration, it is determined that the vehicle meets the pre-charging completion condition, and the vehicle is charged by using the charging pile.

[0036] For example, the first pressure difference range is -5V to 5V, the first preset duration threshold is 5 seconds, and the first preset duration is 300 milliseconds. It is determined that the output voltage of the charging pile is 392V, and the initial request voltage is the voltage of the vehicle battery pack, which is 395V. At this time, it is determined that the target pressure difference is 3V, and the pre-charging duration recorded at this time is 3 seconds. If it is determined that the target pressure difference is 3V and lasts for 300 milliseconds, it is determined that the vehicle meets the pre-charging completion condition, and the vehicle is charged by using the charging pile.

[0037] Through the above scheme, when the pre-charging duration is less than or equal to the first preset duration, the pressure difference range in the pre-charging completion condition is set to be less than the current standard 20V range, the contactor is closed under a smaller pressure difference, and the service life of the contactor is prolonged. Meanwhile, when the first pressure difference range is met, the first preset duration is waited for, the contactor is prevented from being mistakenly closed due to voltage fluctuation of the charging pile, and the reliability of the charging process is improved.

[0038] Alternatively, In step 10222, in response to the pre-charging duration being greater than the first preset duration threshold, a target pressure difference range is determined, the target pressure difference and the target pressure difference range are used to determine that the pre-charging completion condition is met, and the vehicle is charged by using the charging pile. The target pressure difference range is greater than the first pressure difference range.

[0039] In actual implementation, the determined target pressure difference is compared with the preset first pressure difference range, i.e., the size relationship between the target pressure difference and the first pressure difference range is determined. Meanwhile, the pre-charging duration is compared with the first preset duration threshold, and the size relationship between the pre-charging duration and the first preset duration threshold is determined.

[0040] If it is determined that the pre-charging duration reaches the first preset duration threshold and the target pressure difference is always not within the first pressure difference range, the timing continues. When the pre-charging duration is greater than the first preset duration threshold, the target pressure difference range is re-determined, and whether the pre-charging completion condition is met is re-determined according to the target pressure difference and the determined target pressure difference range, and then the charging pile is used to charge the vehicle when the pre-charging completion condition is met.

[0041] In this embodiment, when the pre-charging duration is greater than the first preset duration threshold and the target pressure difference range is re-determined, the target pressure difference range can be a fixed pressure difference range, and the target pressure difference range is greater than the first pressure difference range. That is, when the pre-charging duration is less than or equal to the first preset duration threshold, the corresponding pressure difference range is the fixed first pressure difference range. When the pre-charging duration is greater than the first preset duration threshold, the corresponding pressure difference range is the fixed target pressure difference range, and the fixed pressure difference range is greater than the first pressure difference range.

[0042] For example, the first preset duration threshold is 5 seconds, and when the pre-charging duration is greater than 5 seconds, the target pressure difference range is determined to be -20V to 20V.

[0043] In this embodiment, when the pre-charging duration is greater than the first preset duration threshold and the target pressure difference range is re-determined, the target pressure difference range corresponding to the pre-charging duration can be determined by searching a database according to the pre-charging duration. The database stores the corresponding relationship between the pre-charging duration and the pressure difference range. That is, when the pre-charging duration is greater than the first preset duration threshold, different pre-charging durations correspond to different target pressure difference ranges, and the longer the pre-charging duration, the larger the corresponding target pressure difference range.

[0044] For example, the first preset duration threshold is 5 seconds, and when the pre-charging duration is greater than 5 seconds, different pre-charging durations correspond to different target pressure difference ranges. For example, when the pre-charging duration is 6 seconds, the corresponding target pressure difference range is -9V to 9V. When the pre-charging duration is 7 seconds, the corresponding target pressure difference range is -12V to 12V.

[0045] Through the above scheme, when the pre-charging duration is greater than the first preset duration threshold, the target pressure difference range is re-determined, and then whether the vehicle meets the pre-charging completion condition is determined according to the target pressure difference range. The judgment of whether the pre-charging of the vehicle is completed is more accurate, and the reliability of the charging process is enhanced.

[0046] In some embodiments, when it is determined whether the vehicle meets the pre-charging completion condition according to the target pressure difference range, the timing continues, and if the target pressure difference does not meet the target pressure difference range when the pre-charging duration is greater than the second preset duration threshold, it is determined whether the pre-charging is not completed due to the output deviation of the charging pile, i.e., the requested voltage is re-determined, and then it is determined whether the vehicle meets the pre-charging completion condition. That is, in step 10222, it is determined that the pre-charging completion condition is met according to the target pressure difference and the target pressure difference range, and the vehicle is charged by using the charging pile, specifically including: In step 10A, in response to the target pressure difference meeting the target pressure difference range and the pre-charging duration being less than or equal to the second preset duration threshold and lasting for the second preset duration, it is determined that the pre-charging completion condition is met, and the vehicle is charged by using the charging pile.

[0047] In specific implementation, the determined target pressure difference is compared with the preset target pressure difference range, i.e., the size relationship between the target pressure difference and the target pressure difference range is determined. At the same time, the pre-charging duration is compared with the second preset duration threshold, i.e., the size relationship between the pre-charging duration and the second preset duration threshold is determined.

[0048] If the target pressure difference meets the target pressure difference range and the pre-charging duration is less than or equal to the second preset duration threshold and lasts for the second preset duration, i.e., the target pressure difference is a certain value in the target pressure difference range, and the pre-charging duration is less than the second preset duration threshold and lasts for the second preset duration, it is determined that the vehicle meets the pre-charging completion condition, i.e., the vehicle can be charged by using the charging pile at this time. The second preset duration threshold is greater than the first preset duration threshold.

[0049] For example, the target pressure difference range is -20V to 20V, the second preset duration threshold is 7 seconds, and the second preset duration is 300 milliseconds. It is determined that the output voltage of the charging pile is 370V, and the voltage of the vehicle battery pack is 355V. At this time, it is determined that the target pressure difference is 15V, and the pre-charging duration recorded at this time is 6 seconds. If it is determined that the target pressure difference is 6V and lasts for 300 milliseconds, it is determined that the vehicle meets the pre-charging completion condition, and the vehicle is charged by using the charging pile.

[0050] Through the above scheme, when the target pressure difference range is met, the second preset duration is waited, the contactor is prevented from being mistakenly closed due to the voltage of the charging pile being adjusted, and the reliability of the charging process is enhanced.

[0051] Alternatively, In step 10B, in response to the pre-charging duration being greater than the second preset duration threshold, the target requested voltage is determined according to the target pressure difference, the new target pressure difference is determined according to the target requested voltage, it is determined that the pre-charging completion condition is met according to the new target pressure difference, and the vehicle is charged by using the charging pile.

[0052] In specific implementation, the determined target pressure difference is compared with the preset target pressure difference range, i.e., the size relationship between the target pressure difference and the target pressure difference range is determined. Meanwhile, the pre-charging duration is compared with the second preset time threshold, and the size relationship between the pre-charging duration and the second preset time threshold is determined.

[0053] If it is determined that the pre-charging duration reaches the second preset time threshold and the target pressure difference is always not within the target pressure difference range, the timing is continued. At this time, it is considered that the pre-charging is not completed due to the deviation of the charging pile output voltage, i.e., the target request voltage is determined again according to the target pressure difference, and then a new target pressure difference is determined according to the target request voltage.

[0054] Specifically, after the target request voltage is determined, the determination manner of determining the new target pressure difference according to the target request voltage specifically includes: Step a, sending the target request voltage to the charging pile and receiving a new charging pile output voltage; Step b, acquiring a new vehicle battery pack voltage and determining a new target pressure difference according to the new vehicle battery pack voltage and the new charging pile output voltage.

[0055] In specific implementation, after the target request voltage is determined, the target request voltage is sent to the charging pile. After the charging pile receives the target request voltage, a new output voltage is determined according to the target request voltage, and the new output voltage is sent to the vehicle.

[0056] After the vehicle receives the new charging pile output voltage sent by the charging pile, a new vehicle battery pack voltage is acquired, wherein the new vehicle battery pack voltage is the vehicle battery pack voltage corresponding to the moment when the new charging pile output voltage is received.

[0057] The new vehicle battery pack voltage and the new charging pile output voltage are subtracted to obtain a difference value, which is the new target pressure difference.

[0058] After the new target pressure difference is obtained, it is determined whether the vehicle satisfies the pre-charging completion condition according to the new target pressure difference. If it is determined that the pre-charging completion condition is satisfied, the vehicle is charged by using the charging pile.

[0059] Specifically, the process of determining the target request voltage according to the target pressure difference specifically includes: Step A, adding the initial request voltage and the target pressure difference to obtain a first voltage; Step B, acquiring a preset offset voltage and determining the target request voltage according to the first voltage and the offset voltage.

[0060] In specific implementation, the initial request voltage and the target pressure difference are added to obtain a first voltage. A preset offset voltage is obtained, and a target request voltage is determined according to the first voltage and the offset voltage. The offset voltage is a preset voltage offset, and its specific value can be calibrated according to the determination of the actual new request voltage and the judgment of the pre-charging completion condition.

[0061] Specifically, in the embodiment, when determining the new target request voltage, the new target request voltage may be greater than the maximum output voltage that the charging pile can output. In this case, in order to ensure the normal charging, the new target request voltage should be limited. That is, in step B, the target request voltage is determined according to the first voltage and the offset voltage, specifically including: Step B01, the first voltage and the offset voltage are subtracted to obtain a second voltage; Step B02, the maximum output voltage of the charging pile is determined, and the second voltage is compared with the maximum output voltage; Step B03, in response to the second voltage being less than the maximum output voltage, the target request voltage is determined as the second voltage; or, Step B04, in response to the second voltage being greater than or equal to the maximum output voltage, the target request voltage is determined as the maximum output voltage.

[0062] In specific implementation, after the initial request voltage and the target pressure difference are added to obtain a first voltage, the first voltage and the offset voltage are subtracted to obtain a second voltage, wherein the second voltage is represented by the following formula:

[0063] wherein, is the second voltage, is the initial request voltage, is the target pressure difference, is the offset voltage, is the first voltage.

[0064] The maximum output voltage of the charging pile is determined, and the second voltage is compared with the maximum output voltage. The maximum output voltage represents the maximum voltage that the charging pile can output, and specifically when the charging pile is connected with the vehicle, the charging pile sends the maximum output voltage to the vehicle.

[0065] If the second voltage is less than the maximum output voltage, it means that the request voltage determined according to the first voltage and the offset voltage is less than the maximum output voltage corresponding to the charging pile, that is, the charging pile has the ability to output according to the second voltage. At this time, the target request voltage is determined as the second voltage, that is, the request voltage determined according to the target voltage difference is taken as the new target request voltage.

[0066] If the second voltage is greater than or equal to the maximum output voltage, it means that the request voltage determined according to the first voltage and the offset voltage is greater than the maximum output voltage corresponding to the charging pile, that is, it exceeds the ability of the charging pile, and the charging pile does not have the ability to output according to the second voltage. Therefore, at this time, the target request voltage is determined as the maximum output voltage of the charging pile, that is, the pre-charging is performed according to the maximum output voltage that the charging pile can provide.

[0067] Through the above scheme, by comparing the second voltage determined according to the target voltage difference with the maximum output voltage that the charging pile can output, if the second voltage is greater than the maximum output voltage after the second voltage is directly taken as the target request voltage, the phenomenon that the vehicle request voltage exceeds the ability of the charging pile is avoided, and the success rate of the pre-charging stage is improved.

[0068] In some embodiments, when the pre-charging duration is greater than a second preset duration threshold, after a new target voltage difference is determined, it is determined whether the vehicle satisfies the pre-charging completion condition according to the new target voltage difference, that is, in step 10B, it is determined that the pre-charging completion condition is satisfied according to the new target voltage difference, and the vehicle is charged by using the charging pile, which specifically includes: Step 10BA, in response to that the new target voltage difference satisfies the target voltage difference range and the pre-charging duration is less than or equal to a third preset duration threshold and lasts for a third preset duration, it is determined that the pre-charging completion condition is satisfied; Step 10BB, the vehicle is charged by using the charging pile.

[0069] In specific implementation, the determined target voltage difference is compared with a preset target voltage difference range, that is, the size relationship between the target voltage difference and the target voltage difference range is judged. The target voltage difference range is a voltage difference range corresponding to the pre-charging duration. At the same time, the pre-charging duration is compared with a third preset duration threshold, and the size relationship between the pre-charging duration and the third preset duration threshold is judged.

[0070] If the target voltage difference satisfies the target voltage difference range and the pre-charging duration is less than or equal to the third preset duration threshold and lasts for the third preset duration, that is, the target voltage difference is a certain value in the target voltage difference range, and the pre-charging duration is less than the third preset duration threshold and lasts for the third preset duration, it is determined that the vehicle satisfies the pre-charging completion condition, that is, at this time, the vehicle can be charged by using the charging pile. The third preset duration threshold is greater than the first preset duration threshold.

[0071] Exemplarily, the pre-charge duration is 8 seconds, the second preset duration threshold is 7 seconds, the initial request voltage is 400 V, the charging pile output voltage is 370 V, and the target pressure difference threshold is 20 V. At this time, the target pressure difference is determined to be 30 V, which does not satisfy the preset pressure difference threshold, and the current pre-charge duration is greater than the second preset duration threshold, so the target request voltage should be re-determined.

[0072] The preset offset voltage is determined to be 10 V, and the second voltage is calculated to be 420 V at this time. The maximum output voltage of the charging pile is determined to be 550 V, so the second voltage is less than the maximum output voltage of the charging pile at this time, and the target request voltage is determined to be 420 V.

[0073] The target request voltage is sent to the charging pile, and the new charging pile output voltage fed back by the charging pile is 390 V. The target pressure difference range is -20 V to 20 V, the third preset duration threshold is 10 seconds, and the third preset duration is 300 milliseconds.

[0074] The vehicle battery pack voltage is obtained to be 400 V, and the new target pressure difference is determined to be 10 V at this time. If the target pressure difference is determined to be 10 V and remains for 300 milliseconds, it is determined that the vehicle satisfies the pre-charge completion condition, and the vehicle is charged by the charging pile.

[0075] Through the above scheme, when the target pressure difference range is satisfied, the third preset duration is waited, the contactor is prevented from being mistakenly closed due to the voltage of the charging pile being pulled, and the reliability of the charging process is enhanced.

[0076] In some embodiments, if it is determined that the pre-charge duration reaches the second preset duration threshold, and the target pressure difference is always not within the target pressure difference range, the timing is continued. At this time, it is considered that the pre-charge is not completed due to the deviation of the output voltage of the charging pile, and the target request voltage needs to be re-determined according to the target pressure difference. At this time, the target request voltage is determined at a preset frequency. That is, when it is determined that the pre-charge duration reaches the second preset duration threshold, and the target pressure difference is always not within the target pressure difference range, the pre-charge is not completed at this time, and a new target request voltage is determined every preset frequency. That is, after the new target pressure difference is determined according to the target request voltage in step 10B, it further includes: Step a, determining that the new target pressure difference does not satisfy the pre-charge completion condition, determining a new target request voltage based on a preset frequency, until a preset end condition is satisfied; Wherein, the preset end condition is that the pre-charge duration is less than or equal to the third preset duration threshold, and the new target pressure difference determined according to the new target request voltage satisfies the pre-charge completion condition, or the pre-charge duration is greater than the third preset duration threshold.

[0077] In a specific implementation, if it is determined that the pre-charging duration reaches the second preset duration threshold and the target pressure difference is always not within the target pressure difference range, the pre-charging duration is continued to be counted. At this time, it is considered that the pre-charging is not completed due to the deviation of the output voltage of the charging pile, that is, the target request voltage is re-determined according to the target pressure difference, and then a new target pressure difference is determined according to the target request voltage.

[0078] If it is determined that the pre-charging completion condition is still not met according to the determined new target pressure difference, a new target request voltage is re-determined. A new target pressure difference is determined again according to the new target request voltage. If the pre-charging completion condition is still not met, a new target request voltage is determined again. The frequency of determining the new target request voltage is a preset frequency.

[0079] The above process is repeated until a preset end condition is met. The preset end condition is that the pre-charging duration is less than or equal to a third preset duration threshold and the new target pressure difference determined according to the new target request voltage meets the pre-charging completion condition, or the pre-charging duration is greater than the third preset duration threshold. That is, the preset end condition is that the pre-charging completion condition is met before the pre-charging duration reaches the third preset duration, or the pre-charging duration reaches the third preset duration.

[0080] In the following, the above content is described by a specific example, in which the preset frequency is 1 second, and specifically includes: The pre-charging duration is 8 seconds, the second preset duration threshold is 7 seconds, the initial request voltage is 440V, the output voltage of the charging pile is 390V, and the target pressure difference threshold is 20V. At this time, it is determined that the target pressure difference is 50V, which does not meet the preset pressure difference threshold, and the current pre-charging duration is greater than the second preset duration threshold, so the target request voltage should be re-determined.

[0081] The preset deviation voltage is determined to be 10V, and the second voltage is calculated to be 480V at this time. It is determined that the maximum output voltage of the charging pile is 550V, and the second voltage is less than the maximum output voltage of the charging pile at this time, and the target request voltage is determined to be 480V.

[0082] The target request voltage is sent to the charging pile, and the new output voltage of the charging pile fed back by the charging pile is 400V. The target pressure difference range is -20V to 20V, the third preset duration threshold is 10 seconds, and the third preset duration is 300 milliseconds.

[0083] The vehicle battery pack voltage is obtained to be 430V, and the new target pressure difference is determined to be 30V at this time. At this time, the new target pressure difference is still greater than the target pressure difference threshold, and the new target request voltage is re-determined. That is, the pre-charging duration is 9 seconds, the preset deviation voltage is determined to be 10V, and the second voltage is calculated to be 500V at this time. It is determined that the maximum output voltage of the charging pile is 550V, and the second voltage is less than the maximum output voltage of the charging pile at this time, and the new target request voltage is determined to be 500V.

[0084] The target request voltage is sent to the charging pile, and a new charging pile output voltage of 420V is received by the charging pile. The target voltage difference range is -20V to 20V, the third preset time threshold is 10 seconds, and the third preset time is 300 milliseconds.

[0085] The vehicle battery pack voltage is obtained as 430V, and a new target voltage difference of 10V is determined at this time. If the target voltage difference is determined to be 10V and remains for 300 milliseconds, it is determined at this time that the vehicle satisfies the pre-charging completion condition, and the charging pile is used to charge the vehicle.

[0086] In some embodiments, when the pre-charging is not completed, the timing continues, that is, the pre-charging time is always accumulated. In order to avoid continuously updating the target request voltage when the pre-charging is not completed, which leads to a loop and causes resource waste, the timing is stopped after the pre-charging time exceeds a certain time threshold, and an alarm is triggered. That is, after receiving the charging pile output voltage in step 102, it further includes: Step 10a, in response to the pre-charging time being greater than the third preset time threshold, determining that the pre-charging completion condition is not satisfied; Step 10b, outputting an overtime prompt information and stopping timing.

[0087] In specific implementation, during the pre-charging time accumulation process, if it is determined that the pre-charging time is greater than the third preset time threshold, at this time it indicates that the vehicle has been pre-charged for a sufficient time, and if the pre-charging completion condition is still not satisfied, it indicates that the pre-charging may not be completed due to other problems. The overtime prompt information is outputted, and the timing is stopped, that is, the pre-charging process is stopped and the charging is terminated. The overtime prompt information is used to remind the user that the pre-charging time is too long and the pre-charging is still not completed, and the user is suggested to check the vehicle or replace the charging pile.

[0088] Exemplarily, the third preset time threshold is 10 seconds, and if the pre-charging time is accumulated for 10 seconds and the pre-charging completion condition is still not satisfied, the overtime is triggered, the pre-charging process is stopped, and the charging is terminated.

[0089] In this embodiment, the content form of the overtime prompt information includes at least one of the following: voice, text, picture, video and rich text. The prompt information can be displayed on the vehicle side, can also be displayed on the APP of the user terminal, and can also be displayed on the smart device.

[0090] Case one: if displayed on the vehicle side, the prompt mode of the overtime prompt information includes at least one of the following: voice broadcast, HUD display, instrument display, central screen display, vehicle window display, and vehicle equipment linkage. The HUD display is a head-up display. Exemplarily, if it is determined that the prompt mode of the overtime prompt information is the HUD display, the overtime prompt information will be projected in front of the user.

[0091] Exemplarily, the content of the timeout prompt information is in the form of text, the confirmation prompt mode is the display of the central control screen, and the central control screen displays "vehicle pre-charging timeout, please check or replace the charging pile".

[0092] In case two, the user terminal displays the APP, and the terminal includes at least one of a mobile phone, a watch, a bracelet, a notebook computer, or a tablet computer. The prompt mode of the timeout prompt information includes at least one of voice broadcast or pop-up window display.

[0093] Exemplarily, the terminal is a mobile phone, the content of the timeout prompt information is in the form of text, and the prompt mode is pop-up window display. A pop-up window is displayed on the user's mobile phone, and the pop-up window contains the timeout prompt information "vehicle pre-charging timeout, please check or replace the charging pile".

[0094] Based on the same inventive concept, another embodiment of the present disclosure provides a vehicle charging control method, as shown in the following table. Figure 2 The first preset time threshold is 5 seconds, the second preset time threshold is 7 seconds, the third preset time threshold is 10 seconds, the first pressure difference range is -5V to 5V, the target pressure difference range is -20V to 20V, and the first, second, and third preset times are all 300 milliseconds. The method specifically includes the following steps: Step 201, enter the pre-charging stage, and obtain the vehicle battery pack voltage, which is used as the initial request voltage.

[0095] Step 202, send a pre-charging request and start pre-charging timing, wherein the pre-charging request contains the initial request voltage.

[0096] In specific implementation, after the vehicle is connected to the charging pile, a connection request is sent to the charging pile, indicating that the vehicle needs to be charged by the charging pile. After receiving the connection request, the charging pile performs insulation detection to confirm that the high-voltage loop is well insulated from the ground, preventing personal injury, equipment burning, or power grid accidents caused by leakage or short circuit.

[0097] In response to receiving the insulation detection pass information, i.e., the insulation detection passes at this time, the vehicle determines the initial request voltage and sends a pre-charging request containing the initial request voltage to the charging pile, i.e., the pre-charging request contains the initial request voltage.

[0098] Step 203, calculate the internal and external pressure difference of the pre-charging contactor according to the initial request voltage and the output voltage of the charging pile to obtain the target pressure difference.

[0099] In the embodiment, the initial request voltage is the first request voltage sent by the vehicle to the charging pile. At this time, the voltage of the vehicle battery pack before charging can be used as the initial request voltage. That is, the initial request voltage is the voltage of the vehicle battery pack at the time before the pre-charging request is sent.

[0100] The vehicle battery pack voltage is obtained. Since the vehicle battery pack voltage changes over time as the pre-charging stage progresses, the vehicle battery pack voltage is a real-time voltage. The target voltage difference is determined based on the vehicle battery pack voltage and the charging pile output voltage, that is, the vehicle battery pack voltage is subtracted from the charging pile output voltage to obtain the target voltage difference.

[0101] In step 204, it is determined whether the target voltage difference satisfies -5V to 5V, and the pre-charging duration is less than or equal to 5s and lasts for 300ms. If yes, go to step 210, if no, go to step 205.

[0102] In the embodiment, the determined target voltage difference is compared with the preset first voltage difference range, that is, the size relationship between the target voltage difference and the first voltage difference range is determined. At the same time, the pre-charging duration is compared with the first preset duration threshold, and the size relationship between the pre-charging duration and the first preset duration threshold is determined.

[0103] If the target voltage difference satisfies the first voltage difference range, and the pre-charging duration is less than or equal to the first preset duration threshold and lasts for the first preset duration, that is, the target voltage difference is a value within the first voltage difference range, and the pre-charging duration is less than the first preset duration threshold and lasts for the first preset duration, it is determined that the vehicle satisfies the pre-charging completion condition, that is, the charging pile can be used to charge the vehicle at this time.

[0104] In step 205, it is determined whether the target voltage difference satisfies -20V to 20V, and the pre-charging duration is less than or equal to 7s and lasts for 300ms. If yes, go to step 210, if no, go to step 206.

[0105] In the embodiment, the determined target voltage difference is compared with the preset target voltage difference range, that is, the size relationship between the target voltage difference and the target voltage difference range is determined. At the same time, the pre-charging duration is compared with the second preset duration threshold, and the size relationship between the pre-charging duration and the second preset duration threshold is determined.

[0106] If the target pressure difference meets the target pressure difference range, and the pre-charge duration is less than or equal to the second preset duration threshold and lasts for the second preset duration, that is, the target pressure difference is a certain value in the target pressure difference range, and the pre-charge duration is less than the second preset duration threshold and lasts for the second preset duration, it is determined that the vehicle meets the pre-charge completion condition, that is, at this time the charging pile can be used to charge the vehicle. The second preset duration threshold is greater than the first preset duration threshold.

[0107] In step 206, it is judged whether the pre-charge duration is less than or equal to 10s. If yes, it jumps to step 207. If no, it jumps to step 211.

[0108] In specific implementation, the determined target pressure difference is compared with the preset target pressure difference range, that is, the size relationship between the target pressure difference and the target pressure difference range is judged. At the same time, the pre-charge duration is compared with the second preset duration threshold, and the size relationship between the pre-charge duration and the second preset duration threshold is judged.

[0109] If it is determined that the pre-charge duration reaches the second preset duration threshold, and the target pressure difference is always not in the target pressure difference range, the timing continues. At this time, it is considered that the pre-charge is not completed due to the deviation of the output voltage of the charging pile, that is, the target request voltage is re-determined according to the target pressure difference, and then the new target pressure difference is determined according to the target request voltage.

[0110] In step 207, the target request voltage is determined.

[0111] In specific implementation, the initial request voltage and the target pressure difference are added to obtain a first voltage. A preset offset voltage is obtained, and the target request voltage is determined according to the first voltage and the offset voltage. The offset voltage is a pre-set voltage offset, and its specific value can be calibrated according to the determination of the actual new request voltage and the judgment of the pre-charge completion condition.

[0112] Specifically, in the embodiment, when the new target request voltage is determined, there may be a case that the new target request voltage is greater than the maximum output voltage that the charging pile can output. At this time, in order to ensure the normal charging, the new target request voltage should be limited.

[0113] The maximum output voltage of the charging pile is determined, and the second voltage is compared with the maximum output voltage. The maximum output voltage represents the maximum voltage that the charging pile can output. Specifically, when the charging pile is connected with the vehicle, the charging pile will send the maximum output voltage to the vehicle.

[0114] If the second voltage is less than the maximum output voltage, it means that the request voltage determined according to the first voltage and the offset voltage is less than the maximum output voltage corresponding to the charging pile, that is, the charging pile has the ability to output according to the second voltage. At this time, the target request voltage is determined as the second voltage, that is, the request voltage determined according to the target voltage difference is taken as the new target request voltage.

[0115] If the second voltage is greater than or equal to the maximum output voltage, it means that the request voltage determined according to the first voltage and the offset voltage is greater than the maximum output voltage corresponding to the charging pile, that is, it exceeds the ability of the charging pile, and the charging pile does not have the ability to output according to the second voltage. Therefore, at this time, the target request voltage is determined as the maximum output voltage of the charging pile, that is, the pre-charging is performed according to the maximum output voltage that the charging pile can provide.

[0116] Step 208, determining a new target voltage difference according to the target request voltage.

[0117] In specific implementation, after the target request voltage is determined, the target request voltage is sent to the charging pile. After the charging pile receives the target request voltage, a new output voltage is determined according to the target request voltage, and the new output voltage is sent to the vehicle.

[0118] After the vehicle receives the new charging pile output voltage sent by the charging pile, a new vehicle battery pack voltage is obtained, wherein the new vehicle battery pack voltage is the vehicle battery pack voltage corresponding to the moment when the new charging pile output voltage is received.

[0119] The new vehicle battery pack voltage and the new charging pile output voltage are subtracted to obtain a difference value, which is the new target voltage difference.

[0120] Step 209, determining whether the new target voltage difference satisfies -20V to 20V, and the pre-charging duration is less than or equal to 10s and lasts for 300ms. If yes, jump to step 210, if no, jump to step 211.

[0121] In specific implementation, the determined target voltage difference is compared with a preset target voltage difference range, that is, the size relationship between the target voltage difference and the target voltage difference range is determined. The target voltage difference range is a voltage difference range corresponding to the pre-charging duration. At the same time, the pre-charging duration is compared with a third preset time threshold, and the size relationship between the pre-charging duration and the third preset time threshold is determined.

[0122] If the target pressure difference meets the target pressure difference range, and the pre-charging duration is less than or equal to the third preset duration threshold and lasts for the third preset duration, that is, the target pressure difference is a certain value in the target pressure difference range, and the pre-charging duration is less than the third preset duration threshold and lasts for the third preset duration, it is determined that the vehicle meets the pre-charging completion condition, that is, at this time, the vehicle can be charged by using the charging pile. The third preset duration threshold is greater than the first preset duration threshold.

[0123] In step 210, pre-charging is completed.

[0124] In step 211, pre-charging is timed out, and charging fails.

[0125] In a specific implementation, in the pre-charging duration accumulation process, if it is determined that the pre-charging duration is greater than the third preset duration threshold, at this time, it indicates that the vehicle has been pre-charged for a sufficient time. If the pre-charging completion condition is still not met, at this time, it indicates that pre-charging may not be completed due to other problems. An overtime prompt information is output, and the timing is stopped, that is, the pre-charging process is stopped, and charging is terminated. The overtime prompt information is used to remind the user that the pre-charging time is too long and the pre-charging is still not completed, and it is suggested that the user checks the vehicle or replaces the charging pile.

[0126] Through the above scheme, the pre-charging process is divided into two stages, and the pressure difference thresholds of 5V and 20V are used for determination respectively, so that the contactor is closed under a smaller pressure difference, and the service life of the contactor is prolonged. At the same time, after the pressure difference condition is met, the contactor needs to wait for a certain time before being closed, so as to avoid the false closing of the contactor caused by the voltage fluctuation of the charging pile, and the reliability of the charging process is enhanced. Finally, the re-calculation of the vehicle request voltage through the inner and outer pressure difference of the fast-charging contactor can improve the charging success rate and optimize the charging experience of customers.

[0127] It should be noted that the method of the embodiments of the present disclosure can be executed by a single device, such as a computer or a server. The method of the embodiments can also be applied to a distributed scenario, and completed by multiple devices cooperating with each other. In this distributed scenario, one of the multiple devices can only execute one or more steps in the method of the embodiments of the present disclosure, and the multiple devices can interact with each other to complete the method.

[0128] It should be noted that some embodiments of the present disclosure have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order than the order described above and still achieve desirable results. Additionally, the processes depicted in the figures do not necessarily require the particular order shown, or sequential order, to achieve the desired results. In certain implementations, multitasking and parallel processing can be advantageous.

[0129] Based on the same inventive concept, the disclosure also provides a vehicle charging control device corresponding to any of the above-mentioned embodiment methods.

[0130] Reference Figure 3 , Figure 3 The vehicle charging control device of the embodiment comprises: A timing module 301 configured to determine an initial request voltage, send a pre-charging request containing the initial request voltage to a charging pile, and start timing; A charging control module 302 configured to receive a charging pile output voltage, determine that a pre-charging completion condition is met according to the charging pile output voltage and a pre-charging duration, and use the charging pile to charge the vehicle.

[0131] In some embodiments, the charging control module 302 is specifically configured to: Obtain a vehicle battery pack voltage, and determine a target voltage difference according to the vehicle battery pack voltage and the charging pile output voltage; Determine that the pre-charging completion condition is met according to the target voltage difference and the pre-charging duration, and use the charging pile to charge the vehicle.

[0132] In some embodiments, the charging control module 302 is specifically configured to: In response to the target voltage difference meeting a first voltage difference range, and the pre-charging duration being less than or equal to a first preset duration threshold and lasting for a first preset duration, determine that the pre-charging completion condition is met, and use the charging pile to charge the vehicle; or, In response to the pre-charging duration being greater than the first preset duration threshold, determine a target voltage difference range, determine that the pre-charging completion condition is met according to the target voltage difference and the target voltage difference range, and use the charging pile to charge the vehicle, wherein the target voltage difference range is greater than the first voltage difference range.

[0133] In some embodiments, the charging control module 302 is specifically configured to: In response to the target voltage difference meeting the target voltage difference range, and the pre-charging duration being less than or equal to a second preset duration threshold and lasting for a second preset duration, determine that the pre-charging completion condition is met, and use the charging pile to charge the vehicle; or, In response to the pre-charging duration being greater than the second preset duration threshold, determine a target request voltage according to the target voltage difference, determine a new target voltage difference according to the target request voltage, determine that the pre-charging completion condition is met according to the new target voltage difference, and use the charging pile to charge the vehicle.

[0134] In some embodiments, the charging control module 302 is specifically configured to: add the initial request voltage and the target pressure difference to obtain a first voltage; obtain a preset offset voltage, and determine a target request voltage according to the first voltage and the offset voltage.

[0135] In some embodiments, the charging control module 302 is specifically configured to: subtract the first voltage and the offset voltage to obtain a second voltage; determine a maximum output voltage of the charging pile, and compare the second voltage with the maximum output voltage; in response to the second voltage being less than the maximum output voltage, determine that the target request voltage is the second voltage; or in response to the second voltage being greater than or equal to the maximum output voltage, determine that the target request voltage is the maximum output voltage.

[0136] In some embodiments, the charging control module 302 is specifically configured to: send the target request voltage to the charging pile, and receive a new charging pile output voltage; obtain a new vehicle battery pack voltage, and determine a new target pressure difference according to the new vehicle battery pack voltage and the new charging pile output voltage.

[0137] In some embodiments, the charging control module 302 is specifically configured to: in response to the new target pressure difference satisfying the target pressure difference range, and the pre-charging duration being less than or equal to a third preset time threshold and lasting for a third preset time, determine that a pre-charging completion condition is satisfied; use the charging pile to charge the vehicle.

[0138] In some embodiments, the apparatus further includes a prompt module, which is specifically configured to: in response to the pre-charging duration being greater than the third preset time threshold, determine that the pre-charging completion condition is not satisfied; output an overtime prompt information and stop timing.

[0139] For the convenience of description, the above apparatus is described in various modules according to functions. Of course, the functions of each module can be implemented in one or more software and / or hardware when implementing the present disclosure.

[0140] The apparatus of the above embodiments is used to implement the corresponding vehicle charging control method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiments, which are not described here again.

[0141] Based on the same inventive concept, the disclosure also provides an electronic device corresponding to the vehicle charging control method of any of the above embodiments, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the vehicle charging control method of any of the above embodiments.

[0142] Figure 4 A more specific electronic device hardware structure diagram provided by the embodiment is shown, which can include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are connected to each other through the bus 1050 for internal communication.

[0143] The processor 1010 can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, etc., for executing related programs to implement the technical solutions provided by the embodiments of the present disclosure.

[0144] The memory 1020 can be implemented by a ROM (Read Only Memory), a RAM (Random Access Memory), a static storage device, a dynamic storage device, etc. The memory 1020 can store an operating system and other application programs, and when the technical solutions provided by the embodiments of the present disclosure are implemented by software or firmware, the related program codes are stored in the memory 1020 and called and executed by the processor 1010.

[0145] The input / output interface 1030 is used to connect input / output modules to realize information input and output. The input / output modules can be configured as components in the device (not shown in the figure) or externally connected to the device to provide corresponding functions. The input device can include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device can include a display, a speaker, a vibrator, an indicator light, etc.

[0146] The communication interface 1040 is used to connect the communication module (not shown in the figure) to realize the communication interaction between the device and other devices. The communication module can realize communication through wired means (such as USB, network cable, etc.) or through wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0147] Bus 1050 includes a path for transferring information between the various components (e.g., processor 1010, memory 1020, input / output interface 1030, and communication interface 1040) of the device.

[0148] It should be noted that although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040 and the bus 1050, in the specific implementation process, the device can also include other components necessary for normal operation. In addition, those skilled in the art can understand that the above device can also only contain the components necessary to implement the embodiments of the present specification, and does not have to contain all the components shown in the figure.

[0149] The electronic device of the above embodiment is used to implement the corresponding vehicle charging control method in any of the preceding embodiments, and has the beneficial effects of the corresponding method embodiments, which are not repeated here.

[0150] Based on the same inventive concept, the disclosure also provides a non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the vehicle charging control method according to any of the above embodiments.

[0151] The computer readable medium of the present embodiment includes permanent and non-permanent, removable and non-removable media, which can be realized by any method or technology to store information. The information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible by a computing device.

[0152] The computer instructions stored in the storage medium of the above embodiment are used to cause the computer to perform the vehicle charging control method according to any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which are not repeated here.

[0153] Corresponding to any of the above-mentioned embodiment methods based on the same inventive concept, the application also provides a vehicle comprising the vehicle charging control device in the above-mentioned embodiments, the electronic device in the above-mentioned embodiments, the computer readable storage medium in the above-mentioned embodiments, and the vehicle device implements the vehicle charging control method in any of the above-mentioned embodiments.

[0154] The vehicle in the above-mentioned embodiments is used to implement the vehicle charging control method in any of the above-mentioned embodiments, and has the beneficial effects of the corresponding method embodiments, which are not described here again.

[0155] It can be understood that before using the technical solutions of the various embodiments in the present disclosure, the user will be informed of the type, use range, use scenario, etc. of the personal information involved by appropriate means, and the authorization of the user will be obtained.

[0156] For example, in response to receiving the active request of the user, the user is sent prompt information to explicitly prompt the user that the operation requested to be performed will require the acquisition and use of personal information of the user. Thus, the user can voluntarily choose whether to provide personal information to the software or hardware such as electronic device, application program, server or storage medium, etc. that performs the technical solutions of the present disclosure according to the prompt information.

[0157] As an optional but not limited implementation manner, in response to accepting the active request of the user, the manner of sending prompt information to the user may, for example, be a pop-up window manner, and the prompt information may, for example, be presented in the form of text in the pop-up window. In addition, the pop-up window may also carry selection controls for the user to select "agree" or "disagree" to provide personal information to the electronic device.

[0158] It can be understood that the above-mentioned notification and obtaining of user authorization process is only illustrative, and does not limit the implementation manner of the present disclosure, and other manners meeting the relevant laws and regulations can also be applied to the implementation manner of the present disclosure.

[0159] Those skilled in the art will understand that the above discussion of any of the embodiments is only exemplary and is not intended to imply that the scope (including claims) of the present disclosure is limited to these examples; under the idea of the present disclosure, the above-mentioned embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the embodiments of the present disclosure as described above. In order to be brief, they are not provided in details.

[0160] Additionally, to simplify the description and discussion, and so as not to obscure the embodiments of the disclosure with details that are well known to those skilled in the art, some conventional attributes of integrated circuit (IC) chips and other components can or can not be shown in the drawings or discussed below. Furthermore, devices can be shown in block diagram form in order to avoid obscuring the embodiments of the disclosure, and this also acknowledges the fact that the details in regard to how such block devices are implemented are highly dependent on the platform within which an embodiment of the disclosure is being implemented (i.e., these details should be well within the understanding of one of ordinary skill in the art). Where specific details are set forth in order to describe an illustrative embodiment of the disclosure, it will be apparent to one of ordinary skill in the art that the embodiments of the disclosure can be practiced without, or with variation of, these specific details. Thus, the description is to be considered as illustrative and not restrictive, and the scope of the disclosure to be indicated by the appended claims.

[0161] Although the present disclosure has been described in connection with certain specific embodiments thereof, many modifications, changes, variations and substitutions will be apparent to those skilled in the art once they are given the benefit of the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) can use the embodiments discussed.

[0162] It is therefore intended that the embodiments of the present disclosure encompass all such modifications, changes, variations and substitutions that fall within the broad scope of the appended claims. Accordingly, any one or more of the features, functions, compositions, and / or embodiments of the present disclosure described can be combined in any combination, as would be understood by one of ordinary skill in the art.

Claims

1. A vehicle charging control method, characterized in that, include: Determine the initial requested voltage, send a pre-charge request to the charging station, and start timing, wherein the pre-charge request includes the initial requested voltage; The system receives the output voltage of the charging pile, determines the pre-charging completion conditions based on the output voltage of the charging pile and the pre-charging duration, and then uses the charging pile to charge the vehicle.

2. The method according to claim 1, characterized in that, The step of determining whether the pre-charging completion conditions are met based on the output voltage and pre-charging duration of the charging pile, and then charging the vehicle using the charging pile, includes: Obtain the vehicle battery pack voltage, and determine the target voltage difference based on the vehicle battery pack voltage and the charging pile output voltage; Based on the target pressure difference and the pre-charging duration, the conditions for completing the pre-charging are determined, and the vehicle is charged using the charging pile.

3. The method according to claim 2, characterized in that, The step of determining whether the pre-charging completion conditions are met based on the target pressure difference and the pre-charging duration, and then charging the vehicle using the charging pile, includes: In response to the target pressure difference satisfying a first pressure difference range, and the pre-charging duration being less than or equal to a first preset duration threshold and lasting for a first preset duration, it is determined that the pre-charging completion condition is met, and the vehicle is charged using the charging pile; or... In response to the pre-charging duration being greater than a first preset duration threshold, a target pressure difference range is determined, and the pre-charging completion condition is determined based on the target pressure difference and the target pressure difference range. The vehicle is then charged using the charging pile, wherein the target pressure difference range is greater than the first pressure difference range.

4. The method according to claim 3, characterized in that, The step of determining whether the pre-charging completion conditions are met based on the target pressure difference and the target pressure difference range, and then charging the vehicle using the charging pile, includes: In response to the target pressure difference satisfying the target pressure difference range, and the pre-charging duration being less than or equal to a second preset duration threshold and lasting for a second preset duration, it is determined that the pre-charging completion condition is met, and the vehicle is charged using the charging pile; or... In response to the pre-charging duration exceeding a second preset duration threshold, a target requested voltage is determined based on the target voltage difference, a new target voltage difference is determined based on the target requested voltage, and the pre-charging completion condition is satisfied based on the new target voltage difference, and the vehicle is charged using the charging pile.

5. The method according to claim 4, characterized in that, Determining the target requested voltage based on the target voltage difference includes: The initial requested voltage is summed with the target voltage difference to obtain the first voltage; Obtain a preset offset voltage, and determine the target requested voltage based on the first voltage and the offset voltage.

6. The method according to claim 5, characterized in that, Determining the target requested voltage based on the first voltage and the offset voltage includes: The second voltage is obtained by subtracting the first voltage from the offset voltage. Determine the maximum output voltage of the charging pile, and compare the second voltage with the maximum output voltage; In response to the second voltage being less than the maximum output voltage, the target requested voltage is determined to be the second voltage; or... In response to the second voltage being greater than or equal to the maximum output voltage, the target requested voltage is determined to be the maximum output voltage.

7. The method according to claim 4, characterized in that, Determining the new target voltage difference based on the target requested voltage includes: Send the target requested voltage to the charging pile and receive the new output voltage from the charging pile; Obtain the new vehicle battery pack voltage, and determine the new target voltage difference based on the new vehicle battery pack voltage and the new charging pile output voltage.

8. The method according to claim 4, characterized in that, The step of determining whether the pre-charging completion conditions are met based on the new target pressure difference, and then charging the vehicle using the charging pile, includes: In response to the new target pressure difference satisfying the target pressure difference range, and the pre-charge duration being less than or equal to a third preset duration threshold and lasting for a third preset duration, it is determined that the pre-charge completion condition is met; The vehicle is charged using the aforementioned charging station.

9. The method according to claim 4, characterized in that, After determining the new target differential voltage based on the target requested voltage, the method further includes: Based on the new target voltage difference, if the pre-charge completion condition is not met, a new target requested voltage is determined based on the preset frequency, until the preset termination condition is met. The preset end condition is that the precharge duration is less than or equal to the third preset duration threshold and the new target voltage difference determined according to the new target requested voltage satisfies the precharge completion condition, or the precharge duration is greater than the third preset duration threshold.

10. A vehicle, characterized in that, include: Memory, used to store executable programs; processor; When the executable program is executed by the processor, the method as described in any one of claims 1-9 is implemented.

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